# Phase Sequence Relay 800PSR Selec - Voltage Protection

The Selec Phase Sequence Relay 800PSR ensures the correct voltage sequence in electrical systems, providing dependable protection against phase failures. Ideal for industrial automation, this relay offers a power-on delay of 100ms and a response time of up to 100ms, facilitating efficient monitoring and control.

This **Phase Sequence Relay** features a phase failure trip at 70% Un Un: 400V AC (Ø to Ø), reacting quickly to voltage deviations to prevent equipment damage. With a VA rating of 2VA max. 5A @250V AC, 50/60Hz, and 10A/24V DC for resistive loads, the **Selec 800PSR** is suitable for diverse industrial applications where reliability is essential.

-   **Phase Sequence Monitoring**: Ensures correct voltage sequence.
-   **Phase Failure Protection**: Trips at 70% Un Un: 400V AC.
-   **Quick Response Time**: Up to 100 milliseconds.
-   **Compact Design**: Lightweight at only 100 grams.
-   **Wide Operating Range**: 280-528Vac (P-p).

**Specifications:**  
Operating Voltage: 280-528Vac (P-p)  
Power On Delay: 100 milliseconds  
Response Time: Up to 100 milliseconds  
VA Rating: 2VA max. 5A @250V AC, 50/60Hz, 10A/24V DC (resistive loads)  
Weight: 100 grams

The **Selec Phase Sequence Relay 800PSR** provides a reliable and cost-effective solution for enhancing the safety and efficiency of your electrical systems. Trust in **Selec** for superior performance and peace of mind in your industrial automation setup. Contact Ram Automations for your automation needs.

[info@ramautomations.com](mailto:info@ramautomations.com)

## Details

- **Price:** 999.0 USD
- **Vendor:** Selec
- **Type:** Industrial Automation > Relays > Phase Sequence Relay
- **Tags:** 800PSR, industrial relay, phase failure, phase sequence relay, Selec, voltage protection

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Phase Sequence Relay 800PSR Selec - Voltage Protection-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/phase-sequence-relay-800psr)
> Updated: 2026-10-04